Devil pond
| Teufelsteich Fürst-Victor-Amadeus-Teich, Wolfsberger Teich (both out of date) |
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| Coordinates | 51 ° 37 '16 " N , 11 ° 7' 8" E | ||||||||||
| Data on the structure | |||||||||||
| Construction time: | 1696/97 | ||||||||||
| Height above valley floor: | 18.3 m | ||||||||||
| Height above foundation level : | 20.3 m | ||||||||||
| Height of the structure crown: | 397.15 m | ||||||||||
| Building volume: | 77,500 m³ | ||||||||||
| Crown length: | 211 m | ||||||||||
| Crown width: | 7 m | ||||||||||
| Slope slope on the air side : | 1: 2 | ||||||||||
| Slope slope on the water side : | 1: 2 | ||||||||||
| Data on the reservoir | |||||||||||
| Altitude (at congestion destination ) | 395.50 m | ||||||||||
| Water surface | 19 ha | ||||||||||
| Storage space | 0.76 million m³ | ||||||||||
| Total storage space : | 0.80 million m³ | ||||||||||
| Catchment area | 3.2 km² | ||||||||||
| Design flood : | 10 m³ / s | ||||||||||
The Teufelsteich is an old reservoir in the Harz Mountains . The dammed waters are the Teufelsgrundbach and the Siebengrundbach . The Fürst-Victor-Kunstgraben, which flows into the Silberhütte Aufschlaggraben, was an additional drain .
description
It was built in 1697 near Harzgerode and Quedlinburg ( Saxony-Anhalt ) as an artificial pond for mining. In 1837/38 it was increased for silver mining.
The Teufelsteich was not connected to the Unterharzer pond and ditch system until 1903/04. The Silberhütter Kunstgraben was extended for the last time and it now ended in the catchment area of the Teufelsteich, the Siebengrund . The extension got the name Siebengründer Graben , at the same time the section to Neudorf was drained. In addition to the Teufelsteich, the Fürstenteich and the Silberhütter Pochwerksteich were also supplied with water from the Lude and Rödelbach .
From 1947 the pond is used for the drinking water supply. In 1985 the dam had to be completely renewed. A new state-of-the-art dam was built 30 m below the old dam and the old one was removed.
The new, higher dam consists of a support body made of clay slate and a clay core in the middle. The storage space was increased by 203,000 m³ due to the new building. The dam now has new operating facilities such as a flood relief system , a bottom outlet , an extraction tower with a service walkway, a valve house and a pumping station.
flora
On Teufelsteich were ranunculus peltatus , White bent grass , Eleocharis palustris , Gray Green Fireweed , deergrass and Florentine hawkweed proven. Added Dotted loosestrife on the road east of the devil pond, bastard alfalfa on a roadside near the pond, Brown Moor Clover on the least pond fallow meadow, Real Wundklee to a east of the pond located wayside, Hoary ragwort in a spruce young growth corridor on the north bank, Ash-leaved maple on a dirt road east of the Teufelsteich and Pannonian vetch on a fallow north-east of the pond. The Pannonian vetch was first detected in the Harz interior in 1999.
See also
- List of dams in Germany
- List of ponds of the Unterharzer pond and ditch system
- List of bodies of water in Saxony-Anhalt
Individual evidence
- ^ New finds and additions to the "New Flora von Halberstadt" 5th part ( Memento from March 17, 2005 in the Internet Archive )
literature
- Robert Wouters: Dams in Saxony-Anhalt . Ed .: Saxony-Anhalt dam operation. mdv, Halle (Saale) 2010, ISBN 978-3-89812-677-9 .